Created attachment 426964 [details] build.log error: configuration file tclexample.cfg not found!
Created attachment 426968 [details] emerge --info '=app-doc/doxygen-1.8.11-r1::gentoo'
Created attachment 426970 [details] emerge -pqv '=app-doc/doxygen-1.8.11-r1::gentoo'
As was to expect, because of example-file: Without USE="doc" it works.
This is an odd error - I cannot reproduce. For me (with cmake-3.5* and cmake-3.3*) the dependency tclexample.cfg is correctly built beforehand: ... [ 72%] Generating tclexample.tcl [ 73%] Generating tclexample.cfg ... [ 82%] Generating ../html/examples/tclexample/html/index.html, ../html/examples/tclexample/latex/refman_doc.tex But this doesn't happen in your build: ... [ 52%] [0mGenerating tclexample.tcl ... [ 80%] [0mGenerating ../html/examples/tclexample/html/index.html, ../html/examples/tclexample/latex/refman_doc.tex[0m error: configuration file tclexample.cfg not found! Do you have any ideas what might go wrong?
Thanks so far, but sorry, I can't help with more ideas or even by trying out something senseful: Meanwhile there were plenty updates on other packages and now there are no more problems with compiling doxygen-1.8.11-r2. I'll close the bug for now, as there's no basis for further researches.
